Analysis

  • max time kernel
    51s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-06-2024 00:49

General

  • Target

    102608b8523ba1b517f92ba97fcae12e_JaffaCakes118.dll

  • Size

    576KB

  • MD5

    102608b8523ba1b517f92ba97fcae12e

  • SHA1

    4283e402fb0bc7e02a5152d2a3e1893f0a8cad26

  • SHA256

    2ebeeba37fa2b5d420fa2227cd932f511da532cc52ca54647612beb9bb79bf14

  • SHA512

    8e93f1a23c0367f4b2f0b2c48794fa58be95d4594ffecce311573d320c98a81994fc2d7e4afdcafa197e1556275f6df59fea49a7716df15f8b8925738d010832

  • SSDEEP

    6144:7ZLT3A5Dp0HvFIc5vBlcQGSgS62iiiiiSySYSGS+8c8c8AAANA/AA0fMGrgPhcl5:7ZL7A5l0711g8onrOcWAqVvgkclx

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 1 IoCs
  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\102608b8523ba1b517f92ba97fcae12e_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\102608b8523ba1b517f92ba97fcae12e_JaffaCakes118.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2296
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        PID:372
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 372 -s 264
          4⤵
          • Program crash
          PID:324
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2296 -s 612
        3⤵
        • Program crash
        PID:3524
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2296 -ip 2296
    1⤵
      PID:4400
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 372 -ip 372
      1⤵
        PID:208

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        105KB

        MD5

        48327ee6dec8ae239eff2ffb30403028

        SHA1

        45e4e5014944e1229c49f9e7ad4d0925d93a55bb

        SHA256

        aa3d7c9d4576ca5b9848306ec5f1e3331d1227c9d1e20d2ea80ba611084bad6a

        SHA512

        1c20199e6726237c47f9bd958e9a135778280a8c0e0a86f8bed05f98d199e1502bb54605b036c6a2a54fbc5c48407afaab1e08730e84f1a18d56f5ad3cb89316

      • memory/372-4-0x0000000000400000-0x0000000000473000-memory.dmp

        Filesize

        460KB

      • memory/372-6-0x0000000000590000-0x0000000000591000-memory.dmp

        Filesize

        4KB

      • memory/372-8-0x0000000000400000-0x0000000000473000-memory.dmp

        Filesize

        460KB

      • memory/2296-0-0x0000000010000000-0x0000000010091000-memory.dmp

        Filesize

        580KB

      • memory/2296-9-0x0000000010000000-0x0000000010091000-memory.dmp

        Filesize

        580KB